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P(x) 0.15 0.3 2 0.05 0.5 . Find the expected value of the probability distribution. Round to two decimal places. 1.90 . Find the standard deviation of the probability distribution. Round to two decimal places. 0.19

P(x) 0.15 0.3 2 0.05 0.5 . Find the expected value of the probability distribution. Round to two decimal places. 1.90 . Find the standard deviation of the probability distribution. Round to two decimal places. 0.19

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section: Chapter Questions
Problem 19SGR
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I'm stumped on these 2 questions. THe second picture i only need help with part B. Thank you

P(x) 0.15 1 0.3 0.05 3 0.5 a. Find the expected value of the probability distribution. Round to two decimal places. 1.90 b. Find the standard deviation of the probability distribution. Round to two decimal places. 0.19
Transcribed Image Text:P(x) 0.15 1 0.3 0.05 3 0.5 a. Find the expected value of the probability distribution. Round to two decimal places. 1.90 b. Find the standard deviation of the probability distribution. Round to two decimal places. 0.19
A population of values has a normal distribution with u = 125.3 and o = 60.1. A random sample of size 139 is drawn. Find the probability that a sample of size n = 139 is randomly selected with a mean greater than 116.1. Round your answer to four decimal places. P(M > 116.1) =
Transcribed Image Text:A population of values has a normal distribution with u = 125.3 and o = 60.1. A random sample of size 139 is drawn. Find the probability that a sample of size n = 139 is randomly selected with a mean greater than 116.1. Round your answer to four decimal places. P(M > 116.1) =
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